---
title: Introduction to Tools
---

Tools are the building blocks of Composio. They are used to interact with external APIs and services.

Composio comes with support for 250+ apps with built in authentication and actions.

<CardGroup>
<Card title="Twitter Tool" href="/toolkits/twitter" icon="fa-brands fa-x-twitter">
View the authentication and actions for the Twitter tool.
</Card>

<Card title="Gmail Tool" href="/toolkits/gmail" icon="fa-solid fa-envelope">
  View the authentication and actions for the Gmail tool.
</Card>

<Card title="Github Tool" href="/toolkits/github" icon="fa-brands fa-github">
  View the authentication and actions for the Github tool.
</Card>

<Card title="Notion Tool" href="/toolkits/notion" icon="fa-solid fa-book">
  View the authentication and actions for the Notion tool.
</Card>

<Card title="Google Sheets Tool" href="/toolkits/googlesheets" icon="fa-solid fa-file-spreadsheet">
  View the authentication and actions for the Google Sheets tool.
</Card>

<Card title="Shopify Tool" href="/toolkits/shopify" icon="fa-brands fa-shopify">
  View the authentication and actions for the Shopify tool.
</Card>

<Card title="Stripe Tool" href="/toolkits/stripe" icon="fa-brands fa-stripe">
View the authentication and actions for the Stripe tool.
</Card>
</CardGroup>
